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<blockninesectiontwo>
  <Question1>1. Which of the following conditions will cause the loss of replies?</Question1>
  <Choice1A>Reply Gate(not) constant high</Choice1A>
  <Choice1B>Echo Disable(not) constant high</Choice1B>
  <Choice1C>DTG(not) constant low</Choice1C>
  <Choice1D>AGC constant high</Choice1D>
  <Correct1>None</Correct1>
  <Reference1>Student Workbook Page 12, Section 3</Reference1>
  
  <Question2>2. Which The preselector provides isolation from the transmitter ___________________.</Question2>
  <Answer2>None</Answer2>
  <Reference2>Student Workbook Page 12, Section 3</Reference2>
  
  <Question3>3. Explain the difference between the DET ID and the TACAN GATED IDENTS.</Question3>
  <Answer3>None</Answer3>
  <Reference3>Student Workbook Page 12, Section 3</Reference3>
  
  <Question4>4. Why do echoes produce DME unlocks?</Question4>
  <Answer4>None</Answer4>
  <Reference4>Student Workbook Page 12, Section 3</Reference4>
  
  <Question5>5. What would happen if the noise threshold were adjusted too high? Too low?</Question5>
  <Answer5>None</Answer5>
  <Reference5>Student Workbook Page 12, Section 3</Reference5>
  
  <Question6>6. Distant aircraft report DME unlocks and the AGC voltage equals zero volts. What is the likely problem?</Question6>
  <Answer6>None</Answer6>
  <Reference6>Student Workbook Page 12, Section 3</Reference6>
  
  <Question7>7. Define receiver sensitivity.</Question7>
  <Answer7>None</Answer7>
  <Reference7>Student Workbook Page 12, Section 3</Reference7>
  
  <Question8>8. Define echo trigger level.</Question8>
  <Answer8>None</Answer8>
  <Reference8>Student Workbook Page 12, Section 3</Reference8>
  
  <Question9>9. Which of the following signals will the preselector pass?</Question9>
  <Choice9A>108 - 118 MHz</Choice9A>
  <Choice9B>962 - 1024 MHz</Choice9B>
  <Choice9C>1025 - 1150 MHz</Choice9C>
  <Choice9D>1151 - 1213 MHz</Choice9D>
  <Correct9>None</Correct9>
  <Reference9>Student Workbook Page 12, Section 3</Reference9>
  
  <Question10>10. What is the bandwidth of the preselector?</Question10>
  <Choice10A>10 MHz</Choice10A>
  <Choice10B>12 MHz</Choice10B>
  <Choice10C>53 MHz</Choice10C>
  <Choice10D>63 MHz</Choice10D>
  <Correct10>None</Correct10>
  <Reference10>Student Workbook Page 12, Section 3</Reference10>
  
  <Question11>11. From where does the receiver get its interrogations?</Question11>
  <Choice11A>2A2A3</Choice11A>
  <Choice11B>2A2A11</Choice11B>
  <Choice11C>2A2A15</Choice11C>
  <Choice11D>2A3A10</Choice11D>
  <Correct11>None</Correct11>
  <Reference11>Student Workbook Page 12, Section 3</Reference11>
  
  <Question12>12. What is/are the intermediate frequency/frequencies used in the receiver?</Question12>
  <Choice12A>10 MHz</Choice12A>
  <Choice12B>63 MHz</Choice12B>
  <Choice12C>Both A and B</Choice12C>
  <Choice12D>None of the above</Choice12D>
  <Correct12>None</Correct12>
  <Reference12>Student Workbook Page 12, Section 3</Reference12>
  
  <Question13>13. What is the normal AGC voltage applied to Q1 and Q2 on the preamplifier board?</Question13>
  <Choice13A>0 VDC</Choice13A>
  <Choice13B>2 VDC</Choice13B>
  <Choice13C>4 VDC</Choice13C>
  <Choice13D>10 VDC</Choice13D>
  <Correct13>None</Correct13>
  <Reference13>Student Workbook Page 12, Section 3</Reference13>
  
  <Question14>14. What frequency is the 63 MHz filter specifically designed to reject?</Question14>
  <Choice14A>10 MHz</Choice14A>
  <Choice14B>43 MHz</Choice14B>
  <Choice14C>63 MHz</Choice14C>
  <Choice14D>100 MHz</Choice14D>
  <Correct14>None</Correct14>
  <Reference14>Student Workbook Page 12, Section 3</Reference14>
  
  <Question15>15. What is the output of the second mixer board?</Question15>
  <Choice15A>Interrogations at 10 MHz</Choice15A>
  <Choice15B>Interrogations at 63 MHz</Choice15B>
  <Choice15C>Replies at 10 MHz</Choice15C>
  <Choice15D>Replies at 63 MHz</Choice15D>
  <Correct15>None</Correct15>
  <Reference15>Student Workbook Page 12, Section 3</Reference15>

  <Question16>16. What is the purpose of the frequency discriminator board?</Question16>
  <Choice16A>Reject off-channel interrogations</Choice16A>
  <Choice16B>Reject on-channel interrogations</Choice16B>
  <Choice16C>Reject on-channel replies</Choice16C>
  <Choice16D>Reject off-channel replies</Choice16D>
  <Correct16>None</Correct16>
  <Reference16>Student Workbook Page 12, Section 3</Reference16>

  <Question17>17. What is the purpose of the FILTERED ON-CHANNEL VIDEO?</Question17>
  <Choice17A>Echo detection in the 2A2A3</Choice17A>
  <Choice17B>Half-amplitude extraction in the 2A2A2</Choice17B>
  <Choice17C>Continuous wave detection in the 2A2A3</Choice17C>
  <Choice17D>Off-channel discrimination in the 2A2A2</Choice17D>
  <Correct17>None</Correct17>
  <Reference17>Student Workbook Page 12, Section 3</Reference17>

  <Question18>18. The 2A2A14 is not producing any IF outputs. Which of the following subassemblies, if defective, could cause this?</Question18>
  <Choice18A>2A2A2</Choice18A>
  <Choice18B>2A2A3</Choice18B>
  <Choice18C>2A2A15</Choice18C>
  <Choice18D>A18</Choice18D>
  <Correct18>2A2A16</Correct18>
  <Reference18>Student Workbook Page 12, Section 3</Reference18>

  <Question19>19. Interrogations are not processing through the receiver. All other indications are normal. Which of the following subassemblies, if faulty, could cause this?</Question19>
  <Choice19A>2A2A2</Choice19A>
  <Choice19B>2A2A5</Choice19B>
  <Choice19C>2A2A13</Choice19C>
  <Choice19D>2A2A16</Choice19D>
  <Correct19>None</Correct19>
  <Reference19>Student Workbook Page 12, Section 3</Reference19>

  <Question20>20. What is the purpose of the pulse width discriminator?</Question20>
  <Choice20A>Eliminates receiver-generated noise spikes</Choice20A>
  <Choice20B>Detects the half-amplitude point of interrogations</Choice20B>
  <Choice20C>Passes off-channel interrogations</Choice20C>
  <Choice20D>Rejects off-channel interrogations</Choice20D>
  <Correct20>None</Correct20>
  <Reference20>Student Workbook Page 12, Section 3</Reference20>

  <Question21>21. What What signal is used to block echoes?</Question21>
  <Choice21A>REPLY GATE(not)</Choice21A>
  <Choice21B>RCVR VIDEO</Choice21B>
  <Choice21C>ECHO DISABLE(not)</Choice21C>
  <Choice21D>ON-CHANNEL VIDEO(not)</Choice21D>
  <Correct21>None</Correct21>
  <Reference21>Student Workbook Page 12, Section 3</Reference21>

  <Question22>22. If all the inputs to U1A are correct, what signal will be present at TP1?</Question22>
  <Choice22A>Constant low</Choice22A>
  <Choice22B>Constant high</Choice22B>
  <Choice22C>Negative pulses</Choice22C>
  <Choice22D>Positive pulses</Choice22D>
  <Correct22>None</Correct22>
  <Reference22>Student Workbook Page 12, Section 3</Reference22>

  <Question23>23. The Restored Video Pulse Width Discriminator discriminates against pulses less than ____.</Question23>
  <Choice23A>0.5 μs</Choice23A>
  <Choice23B>1.0 μs</Choice23B>
  <Choice23C>1.5 μs</Choice23C>
  <Choice23D>2.0 μs</Choice23D>
  <Correct23>None</Correct23>
  <Reference23>Student Workbook Page 12, Section 3</Reference23>

  <Question24>24. Which of the following is one function of the 2A2A3?</Question24>
  <Choice24A>Double codes interrogations</Choice24A>
  <Choice24B>Format fault signals for the monitors</Choice24B>
  <Choice24C>Extract the half-amplitude point of interrogations</Choice24C>
  <Choice24D>Checks interrogations against receiver sensitivity</Choice24D>
  <Correct24>None</Correct24>
  <Reference24>Student Workbook Page 12, Section 3</Reference24>

  <Question25>25. What is the initial receiver sensitivity range?</Question25>
  <Choice25A>–55 to –25 dBm</Choice25A>
  <Choice25B>–94 to –60 dBm</Choice25B>
  <Choice25C>–100 to –80 dBm</Choice25C>
  <Choice25D>–110 to –94 dBm</Choice25D>
  <Correct25>None</Correct25>
  <Reference25>Student Workbook Page 12, Section 3</Reference25>

  <Question26>26. Which of the following affects AGC voltage?</Question26>
  <Choice26A>Level of interrogations</Choice26A>
  <Choice26B>Number of interrogations</Choice26B>
  <Choice26C>Level of reference bursts</Choice26C>
  <Choice26D>Number of reference bursts</Choice26D>
  <Correct26>None</Correct26>
  <Reference26>Student Workbook Page 12, Section 3</Reference26>

  <Question27>27. If INTERROGATION BRACKET(NOT) is low, the value in the 1st peak detector will transfer to the 2nd peak detector.</Question27>
  <Choice27A>TRUE</Choice27A>
  <Choice27B>FALSE</Choice27B>
  <Choice27C>NONE</Choice27C>
  <Choice27D>NONE</Choice27D>
  <Correct27>None</Correct27>
  <Reference27>Student Workbook Page 12, Section 3</Reference27>

  <Question28>28. A low is present at TP12 after an input of Cal Mode 5 at the PC. Which of the following components, if misadjusted, could cause this?</Question28>
  <Choice28A>R66</Choice28A>
  <Choice28B>R67</Choice28B>
  <Choice28C>R78</Choice28C>
  <Choice28D>R79</Choice28D>
  <Correct28>None</Correct28>
  <Reference28>Student Workbook Page 12, Section 3</Reference28>

  <Question29>29. What is the function of the Video Correlator?</Question29>
  <Choice29A>Delay VIDEO RESTORED(not) by 12 μs in Y mode</Choice29A>
  <Choice29B>Delay VIDEO RESTORED(not) by 30 μs in Y mode</Choice29B>
  <Choice29C>Provide an overall system delay of 50 μs</Choice29C>
  <Choice29D>Provide a 12 μs delayed input to U34</Choice29D>
  <Correct29>None</Correct29>
  <Reference29>Student Workbook Page 12, Section 3</Reference29>

  <Question30>30. The Decode Generator _____.</Question30>
  <Choice30A>Produces delayed video</Choice30A>
  <Choice30B>Verifies 12 μs pulse pair spacing</Choice30B>
  <Choice30C>Delays A by 1.6 μs to produce DEAD TIME GATE(NOT)</Choice30C>
  <Choice30D>Delays Adv Decodes by 1.6 μs to produce DECODE(NOT)</Choice30D>
  <Correct30>None</Correct30>
  <Reference30>Student Workbook Page 12, Section 3</Reference30>

  <Question31>31. What is the purpose of the BURST GATE(NOT) input to this card?</Question31>
  <Choice31A>Inhibits the production of ADVANCE DECODES</Choice31A>
  <Choice31B>Inhibits the random noise generator during reference bursts</Choice31B>
  <Choice31C>Enables the controlled squitter processor during reference bursts</Choice31C>
  <Choice31D>Disables the controlled squitter processor during reference bursts</Choice31D>
  <Correct31>None</Correct31>
  <Reference31>Student Workbook Page 12, Section 3</Reference31>

  <Question32>32. How many PROCESSED SQUITTERS per second (TP3) are generated?</Question32>
  <Choice32A>2700 pps</Choice32A>
  <Choice32B>3600 pps</Choice32B>
  <Choice32C>2700 pps minus interrogations</Choice32C>
  <Choice32D>2700 pps plus interrogations</Choice32D>
  <Correct32>None</Correct32>
  <Reference32>Student Workbook Page 12, Section 3</Reference32>

  <Question33>33. There are no pulses present at TP6. Which of the following subassemblies, if faulty, could cause this?</Question33>
  <Choice33A>Random noise generator</Choice33A>
  <Choice33B>Pulse width discriminator</Choice33B>
  <Choice33C>Rate controlled squitter generator</Choice33C>
  <Choice33D>Controlled squitter pulse processor</Choice33D>
  <Correct33>None</Correct33>
  <Reference33>Student Workbook Page 12, Section 3</Reference33>

  </blockninesectiontwo>